Miner&#39;s lamp.



No. 886,204. PATENTED APR. 28, 1908.-

R. L. GRAVES.

MINERS LAMP. APPLIUATION FILED MAY a. .1901.

WITNESSES INVENTOH RA PH L. GHAVEE A TTOHNE YS ,moved from the spout. 'verse horizontal view of the same taken on- RALPH L. GRAVES, OF SUllllEB, OREGON.

MINERS LAMP.

Specification of Letters Patent.

Patented April as, 190s.

Application filed May 8, 1907. Serial No. 372,468. i

To all whom it may concern:

Be it known that I, RALPH L. GRAVES, a citizen of the UnitedStates, and a resident of Sumter," in the county of Baker and State of Ore on, have invented certain new and useful Improvements in Miners Lamps, of which the following is a specification.

My invention relates to improvements in that class of lamps in which paraffin, wax or other solid fuel is used and is designed as an improvement on the lamp shown and described in an application filed by me having Serial No. 329,069, the object of the improvement being to render the lamp more convenient in handling, in that the wick tube can be readily removed and -rewicked with little or.

no trouble.

ith this and other objects in view my resent invention consists in certain novel features of construction, arrangement and combination of parts, reference being had to the accompanying drawings in which Figure 1 is a vertical section of a miner's lamp showing my improvements applied. Fig. 2 is an elevation of the wick tube re- Fig. 3 is a transline 33 of Fig. 2. Fig. 4 is aside elevation Fig. 5 is a Fig. 6 is transverse horizontal section of same taken on line 66 of Fig. 5. Fig. 7 1s a view of modifiedf0rm of Wick tube container which may be u ed.

In describing my invention which is an imvprovement on the lamp shown and described in my former application, I will first briefly describe the construction shownin said application and then describe in detail the improved features.

I use a lamp of the no-chimney type comprising a reservoir or body A provided with the hook B, and the removable screw thread.- ed cap closure D, which may be provided with the suspension loop C. The spout B which contains the wick tube projects upwardly in a diagonal direction from the reservoir A.

E designates the wick container which is composed of comluctive material such as co pper wires G arranged in tubular formand secured and held in such shape by the collars ll, Il. crimped thereon or otherwise securely fastened thereon, as shown in Figs. 5 and 6: A number of the wires project beyond the upper collar H constituting extensions I its expa-nsibility.

usual material used in this class of lamps is: placed in this tube E, and by pressing on the which pass through openings in the spout cap J, said openings being arranged around this tube is slitted as at e at one side,

throughout its entire length to give the tube The wick F which is of the sides of said tube with the thumb and forefinger-t will be slightly compressed so that it can be readily slipped through the collar K and dowrf into the container E. The filaments composing the container E project be yond the upper end of the wick and when the wick is lighted by their conductivity warm the solid fuel and liquefy the same, when by the ca illarity of the wick it will pass up throug the wick and furnisha strong flame.

While I prefer to secure the wire extensions I to the wick collar K, as shown, it is obvious that other means may be employed for this purpose without departing from the scope and spirit of my invention.

In Fig. 7, I show another form of wick tube container, the same being constructed of a conductive tubular foraminous body E, and the upper end fashioned with integral extensions E designed to project through the cap J into position to be adapted to be heated by the wick flame in a manner similar to that.

described for heating the wire extensions 1. WVhcn it is desired to secure a larger flame the extensions I or E may be bent outwardly as indicated by dotted lines in Fig. 1. Through the wick collar K and the collar L, I make elongated slots 0 through which the point of a miners candlestick may be p'assed'to raise the wick.

With my improvements, the fuel is retained in a fiuid condition no matter in which direction the flame is blown, since in any defiection of the flame, one or more of the conductive extensions I or E will receive heat and the same be conducted into the lamp body to the wick tube container and as the split wick tube itself will by its elasticity lie in close contact with the container keeping 15 a slot in enc side and rigidly secured to said I Q eeaeoe the container and wick tube sufficiently heated for keeping the fuel in a heated and liquid condition. y

The flange 6 on the upper end of the expansible tube E serves to aid in retaining the asbestos gasket M in its proper place.

I clain1 In a.miners lamp, the combination with the spout thereof, of a wick tube container adjustz'tbly held in said spout, said container comprising a series of Wires held in tubular arrangement, the upper portion of said container being of greater diameter than the lower portion thereof, of a wiek'c'ollar having spout and projecting beyond the same, within the upper portion of the container, a sleeve surrounding said collar, and provided with slots, and an expansible foraminous Wick tube horizontally flanged at its ,outer end and shugly held insaid container end adapted to be longitudinally adjustable inv the container by a candlestick pin inserted through the aforesaid slots and to be removed from the outside by means of the 25 aforesaid flange.

RALPH L. GRAVES. \Vitnesses:

FRANK S. BAILLIE, O: D. .MQRRILL. 

